tungsten carbide brazing rods made of tungsten carbide particle and matrix alloy,we supply copper alloy matrix and nickel matrix alloy.Nicke matrix alloy is with higher hardnes and better wear resistance. Outside special flux and color is marking scrap grade,CO and WC is the main composition of sintering tungsten carbide,the hardness is HRA 89-91.This structure offers extremely effective protection against abrasive attack by a wide variety of hard and abrasive formations
Flux Coated FLUX Flux serves two main purposes. The first is to remove all foreign elements from the surface to be coated. The second is to prevent oxidation of the surface being coated. If an area is left unfluxed, the torch heat will rapidly oxidize the base material and prevent adhesion of the Composite Rod material to the base material.
The oxyacetylene butt, the operating process is as follows: (1) clean up the workpiece, make the welding workpieces surface with metallic luster. (2) the flat position of welding, therefore can use the appropriate clamping fixture for control of surfacing layer thickness, thick piece of available. (3) with a neutral flame preheating, flame core not contact surface, the distance to 25 mm is advisable. (4) carbide surfacing welding layer.With YD type electrode surfacing, the use of neutral flame (can be slightly carbonizing flame) tip is steady on the workpiece surface movement, the flame of the alloy electrode heating (be careful not to make flame cone tip contact alloy particles), tire body in the electrode alloy melt, carbide particles are also falling.Before the tire body of molten metal solidification, the particles arrange, can use left hand of the alloy electrode fingers, or another person holding a base electrode or pull rod on graphite rod in a quick stir particles, making them evenly aligned neatly.Surfacing layer thickness control according to the requirements of design. (5) after the workpiece welding, where no ventilation, slow cooling, cannot quench, conditional usable asbestos blanket cover. (6) the workpiece after cooling to room temperature, if necessary, grinding surface surfacing to required size and shape. (7) clean up the workpiece, remove all splash, slag, etc.
